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Propeller blades are twisted. The blade angle changes from the hub to the tip with the greatest angle of incidence, or highest pitch, at the hub (closest to the plane) and the smallest at the tip.

Propeller blades are twisted. The blade angle changes from the hub to the tip with the greatest angle of incidence, or highest pitch, at the hub (closest to the plane) and the smallest at the tip.

Credits - NASA

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